1) Preparation of text file: First of all you locate or create a text file which contains strings, one under another. Each line is the name of a folder which will be created in a parent directory by Txt2dir.
Very simple example contents of a txt file named for instance C:\My Documents\My Animals.txt:

An easy way to save such a file is using Notepad from Windows.

2) Txt2dir:
A) Enter the prepared text file by typing in the complete path or using the file menu or using the selection panel.
B) Similarly enter the parent folder by typing it or using the folder menu or using the selection panel. For instance 'C:\My Documents\Animals'
C) Hit RUN button.

In our example, following folders would be made:
C:\My Documents\Animals\cat
C:\My Documents\Animals\dog
C:\My Documents\Animals\fish
C:\My Documents\Animals\bird